Home / 2,218.04-3,325.80-918.08

Finding the Fourth Proportional to 2,218.04, 3,325.80 and 918.08

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Solution

The fourth proportional to 2,218.04, 3,325.80 and 918.08 is: 1,376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.04 : 3,325.80 = 918.08 : x
  2. Step 2: Convert to fraction form
    2,218.04/3,325.80 = 918.08/x
  3. Step 3: Cross multiply
    2,218.04x = 3,325.80 × 918.08
  4. Step 4: Simplify right side
    2,218.04x = 3,053,350.46
  5. Step 5: Solve for x
    x = 3,053,350.46/2,218.04
  6. Step 6: Final answer
    x = 1,376.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.